- any of various high-carbon steels capable of being hardened and tempered to meet special requirements for machining, etc.
Examples from the Web for tool steel
Historical Examples of tool steel
The highest grades of tool-steel are improved by being kept in stock for a considerable time, the longer the better.Inventors at Work
Presently his friend Derec came to see him in the tool-steel cell in which he had been placed.The Pirates of Ersatz
They could grind up and swallow anything but tool-steel reinforced with diamond chips.Attention Saint Patrick
William Fitzgerald Jenkins
- any of various steels whose hardness and ability to retain a cutting edge make them suitable for use in tools for cutting wood and metal